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64kwh Kona battery

Posted: Tue Mar 15, 2022 5:05 pm
by Zapatero
Has anyone used the cells of a Kona battery? Can they be used like the leaf cells, if you put them in some housing for the necessary mechanical compression?

Thanks, Philip

Re: 64kwh Kona battery

Posted: Tue Mar 15, 2022 5:09 pm
by arber333
Zapatero wrote: Tue Mar 15, 2022 5:05 pm Has anyone used the cells of a Kona battery? Can they be used like the leaf cells, if you put them in some housing for the necessary mechanical compression?

Thanks, Philip
They are basicaly the same as chevy bolt batteries. They use a good low profile frame with copper contacts.
3P96S configuration...

Re: 64kwh Kona battery

Posted: Tue Mar 15, 2022 9:56 pm
by paaa
Your in luck I'm hoping to use one and just opened the pack

Re: 64kwh Kona battery

Posted: Tue Mar 15, 2022 9:58 pm
by paaa
Pics

Re: 64kwh Kona battery

Posted: Tue Mar 15, 2022 9:58 pm
by paaa
Pics

Re: 64kwh Kona battery

Posted: Tue Mar 15, 2022 10:01 pm
by paaa
Pics

Re: 64kwh Kona battery

Posted: Wed Mar 16, 2022 5:49 pm
by Zapatero
Awesome, so the measurements you gave me here are the ones of an array of cells? How many cells are in there? Whats the voltage of that array? Send like there is a block metal frame around it?

Re: 64kwh Kona battery

Posted: Wed Mar 16, 2022 8:46 pm
by Kutato72
The length of the 10S3P and 15S2P modules is 480 mm (+15 mm mounting lugs), while the length of the 9S3P modules is 430 mm (+15 mm here as well). The modules are 105 mm high (+10 mm extra) and 360 mm wide.

There is a 39 kWh "Economy" version from Hyundai Kona Electric, which contains 180 cells in a 90S2P configuration, ie there are two of the above cells in parallel - its nominal voltage is 330V, its operating range is 225 ÷ 387V, while the "Standard" version is already Contains 294 cells in a 98S3P configuration, i.e., the cells are connected in parallel with a triple; its nominal voltage is 360V, its operating range is 245 ÷ 421.4V.

Re: 64kwh Kona battery

Posted: Wed Mar 16, 2022 8:52 pm
by Zapatero
So there are the different modules in the pack?
10S3P
15S2P
9S3P
???

How is that possible, i thought they all would be the same? How do they make sure energy draw is the same for every cell if the arrays are different?

Many thanks for your knowledge

Re: 64kwh Kona battery

Posted: Wed Mar 16, 2022 8:58 pm
by Kutato72
Based on the photos, you'll understand.

Re: 64kwh Kona battery

Posted: Thu Mar 17, 2022 4:33 am
by Zapatero
Thanks for this inside on the battery i just bought mine and I'll have to take it apart in order to split it in 2 packs, front and rear. Will you reuse the BMS? Is there already some knowledge about the canbus information?

Do you also have a picture of the cell connectors?
Is cell monitoring a master/slave design or do all 98 positive connectors go to three BMS directly?

Re: 64kwh Kona battery

Posted: Thu Mar 17, 2022 5:30 pm
by Kutato72
The three types of battery modules have a total of eight (!) different connectors. Their illogical connection is a nightmare. The MAX17845 chip built into CMUs is top secret, with no datasheet, not a programming manual. And it uses an isoSPI bus anyway, not a CAN bus.

Re: 64kwh Kona battery

Posted: Thu Mar 17, 2022 5:40 pm
by Zapatero
So if it's like that, how can you reuse the battery modules? Can i tap the cells with an aftermarket BMS?

Re: 64kwh Kona battery

Posted: Fri Mar 18, 2022 8:15 pm
by paaa
My aim is to just work out the can messaging from main management unit from some can logs I have let to get, also hoping to make use of one other those ev apps that already have the can figured out

Re: 64kwh Kona battery

Posted: Sat Mar 19, 2022 5:21 am
by Zapatero
Some more real good information here:

https://pajalle.com/2022/02/02/konan-akkua-tutkimassa/

Re: 64kwh Kona battery

Posted: Sat Mar 19, 2022 8:41 am
by johu
Good find. So it seems feasible to extend the existing cell tap harnesses to an Orion BMS or so. Of course it would be preferable to use the stock BMS if hacked by then.

Re: 64kwh Kona battery

Posted: Mon Mar 21, 2022 4:42 pm
by Clanarn
MAX17843 is cracked by Bexander. I made an interface board for it successfully communicating with the latest Renault Zoe, Peugeot e-208 and Kia Niro PHEV. Let me know if you want one to try.

Quite possible that MAX17845 is similar enough to MAX17843 so it can be controlled with MAX17841B. A first step would be to see if the package and pinout is the same.

Re: 64kwh Kona battery

Posted: Mon Mar 21, 2022 6:34 pm
by Kutato72
For the MAX17845, both the pinout and the basic protocol are the same as the MAX17823B, but the self-diagnostic is different.

Re: 64kwh Kona battery

Posted: Tue Jul 05, 2022 2:17 pm
by nathaniel
Clanarn wrote: Mon Mar 21, 2022 4:42 pm MAX17843 is cracked by Bexander. I made an interface board for it successfully communicating with the latest Renault Zoe, Peugeot e-208 and Kia Niro PHEV. Let me know if you want one to try.

Quite possible that MAX17845 is similar enough to MAX17843 so it can be controlled with MAX17841B. A first step would be to see if the package and pinout is the same.
Hi, i have purchased a kona pack and i want to try to use the original BMS if possible, as i understand you have created a PCB for this? i'm very interested in this and i want to give it a try, can you share some information about the board and software?

Re: 64kwh Kona battery

Posted: Wed Aug 03, 2022 8:01 am
by EV_Builder
The KONA Battery comes with some modules, slaves and master does anyone figured out yet what their connections are?

Re: 64kwh Kona battery

Posted: Wed Oct 19, 2022 10:25 pm
by EV_Builder
ok the kona can be read with our MAX module 8-) :D

Re: 64kwh Kona battery

Posted: Sat Oct 29, 2022 6:17 am
by nathaniel
EV_Builder wrote: Wed Oct 19, 2022 10:25 pm ok the kona can be read with our MAX module 8-) :D
Do you have some more information about your MAX module? Can I buy it somewhere or is it open?
I have a kona pack open now and if possible I want to use the original bms system.

Re: 64kwh Kona battery

Posted: Sat Oct 29, 2022 7:34 am
by EV_Builder
nathaniel wrote: Sat Oct 29, 2022 6:17 am Do you have some more information about your MAX module? Can I buy it somewhere or is it open?
I have a kona pack open now and if possible I want to use the original bms system.
Send me an EMAIL or DM. But the module doesn't use original BMS system.
What we do is use original chip, LIKE OEM BMS and design own BMS around that.

One of the theories on this forum is that by using our own hardware and software we are independant of software changes in OEM hardware.

Re: 64kwh Kona battery

Posted: Thu Dec 01, 2022 12:45 pm
by m.art.y
Kutato72 wrote: Wed Mar 16, 2022 8:46 pm There is a 39 kWh "Economy" version from Hyundai Kona Electric, which contains 180 cells in a 90S2P configuration, ie there are two of the above cells in parallel - its nominal voltage is 330V, its operating range is 225 ÷ 387V, while the "Standard" version is already Contains 294 cells in a 98S3P configuration, i.e., the cells are connected in parallel with a triple; its nominal voltage is 360V, its operating range is 245 ÷ 421.4V.
Hi, are you saying 39 kwh Kona battery is using same cells as the 64 kwh battery but 90s instead of 96s and in 2P configuration instead of 3P? I wonder if 6s2P block can be added to make it 96s? Are they normal Li-ion as it says Li-ion Polymer on the pack? 🙂

Re: 64kwh Kona battery

Posted: Thu Dec 01, 2022 5:16 pm
by m.art.y
I'm wondering how would Nissan Leaf stack controlled by Zombieverter work with the 90S 39 kwh battery pack since it's voltage range seems to be ~230-380v. Anybody knows what's the min voltage Leaf gen3 inverter works to and if it loses power as the voltage gets lower as the pack gets depleted (Leaf inverter controlled by Zombieverter by CAN)? Thanks